Tough one.......

I have both the 190 and 390 and I love both. I recently tried on a 372 and was pleasantly surprised by how well (for 47mm) it fitted my relatively slim wrist, it was very comfortable.

But it didn't cry out to me to buy one. Of the 190 and 390, you will not regret buying either. My favourite is the 190, the movement is superb it definitely gets more wrist time and to be able to pick it up 4 days after a few days wearing and it to be absolutely spot on timewise is a cool feeling of owning absolute quality.

All three are classics and whichever one you get, you will probably also want the other 2, it is more a choice of want do you want first.